Recording device



I. F. HEPLER.

RECORDING DEVICE.

APPLICATION FILED JULY 12.1919.

Patented Apr. 4, 1922 6 SHEETS-SHEET I.

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RECORDING DEVICE.

APPLICATION HLED IULY 12,1919.

Patented Apr. 4, 1922.

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RECORDING DEVICE,

APPLICATION FILED IULY12,1919- Patented Apr. 4, 1922.

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L 1 L-JI I. F. HEPLER.

RECORDING DEVICE.

APPLICATION FILED JULY 12,1919.

Patented Apr. 4, 1922.

6 SHEETS-SHEET 4.

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RECORDING DEVICE.

APPLICATION FILED JULY 12.19l9.

Patented Apr. 4, 1922. v

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RECORDING DEVICE. APPLICATION man JULY 12,1919.

Patented Apr. 4, 1922.

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fn renior [F UNITE "STATES .IRVIN F. HEPLER, OI TYRONE, YEH'NSYLVARIA.

Specification of Letters Patent.

RECORDING DEVICE.

Patented Apr. 4, 1922.

Application filed July 12, 1919. Serial No. 810,459. v

To all whom it may concern:

'Be it known that I, IRVIN F. HEPLER, a

citizen of the United States of America, re-

siding at Tyrone, in the county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Recording Devices, of which the following is a medium. Associated with the pressure chamhers are means for magnifying and regulating the variations of pressure so that these may be recorded. It is also contemplated, in the special application of this device to fuel consumers, to provide a connection with a draft inlet and a flue outlet, it being found that efficiency and economy in fuel consumption are to a great extent dependent upon proper draft regulation.

It is still a further object of the invention to place upon the recording medium lines indicating the maximum and minimum efiiciency of a fuel consumer so thata permanent record may b kept of the conditions maintained in the fuel consumer during any given time. Provision is also made for varying the range and adjustment of these devices to accommodate different grades of fuel for instance, and means are provided in connection with the devic for sounding an -alarm when any predetermined limit in either direction is reached.

Still a further object is the production of- Drawings illustrating an embodiment of the invention are hereto annexed, the following views being shown:

Figure 1 is a view in front elevation showing a cabinet containin an embodiment of the device constituting tile present invention;

. Fig. 2 is a similar view, the door of the cabinet and a record sheet being removed;

Fig. 3 is a view in side elevation of the device, a portion of the cabinet being shown in section;

. Fig. 4 is a view in top plan, a portion of th cover of the cabinet being removed;

Fig. 5 is a similar view showing an arrangement of pressure and float chambers;

1 1g. 6 is a diagrammatic view illustrating a means for associating an alarm with the device; 1

Fig. 7 is a detail view of apart;

Fig. 8 is a 'view in front elevation showing a portion of the alarm instrumentality;

Figs. 9 and 10 are views in vertical section througha pressure chamber and float chamber, respectively;

Fig. 11 is a view in front portion of a record sheet feeding device;

elevation of a Figs. 12 and 13 are a side and end eleva tion of a pen form-ing a portion of a gage cli ;and

igs. 14 and 15 are similar views of'the entire clip.

Referring specifically to the drawings, the numeral 1 designates generally a cabinet for containing the device and provided with a door through which access may be had thereto. Means are provided for connection with and to be acted upon by any source of pressure. To this end, pressure chambers 2and 3 are mounted on a base 4 and may be connected as by pipes 5 and 6 with any instrumentality, the variations in the pressure of which it is desired to record. The pipe 5 is provided with a three-way cock 7 and the pipe 6 is provided with a three-way valve 8. The pressure chambers, as shown partic v ularly in Figs. 9 and 10, have channels 9 and 10 extending through the base 4 and chambers. Associated with these pressure chambers, there are float chambers 11 and 12, these likewise being provided with channels 13 and 14 disposed in the base and giving access to the interior of the float chamber. Pressure chamber 2 an fl hamber communicating with the interior of the 11 are in communication as by an upwardlycxtendmg slphon pipe 1:) connecting passages 10 and- 13 and pressure chamber 3 and float chamber 12 are similarly connected, through passages 9 and 14, by pipe 16. As shown particularly in Fig. 3, these pipes have means for connection with a flexible tube 17 as by a T and valve 18.

Oil is first introduced into the pressure chamber or placed directly in the float chamber to minimize evaporation. Tube 17 is connected to a bottle of suitable liquid, such as water, and valve 18 opened. Threeway valve 8, or 7, as the case may be, 1s now opened to the atmosphere. Water is introduced into the pressure chamber until oil shows at the opening in the three-way valve. This is now closed and enough water added until the flow is started over the bend in the siphon tube. Valve 18 is next closed and the liquid seeks its level in the two chambers. The flow is regulatable as by valves 19 and 20, and this aids in minute adjustment of the apparatus, as will be later mentioned.

The float chamber in each instance is of smaller area than the pressure chamber, and in them are disposed floats 21 and 22. These are carried on wires or the like 23 and 24 passing over wheels or drums 25 and 26 on supports 27. The wires are carried along over pulleys 28' and at their opposite ends carry counterweights 29. Penholders 30 and 31 are disposed on the drums 25 and 26 and normally bear on the surface of a record sheet 32. This passes over a platen fed from a drum 34, mounted in brackets 35.

When the liquid has sought its level in the float and pressure chambers as above described, the three-way cocks connecting the pressure chamber with the points under observation are opened to the atmosphere and the pens adjusted properly at zero between two points on the record sheet established by means later to be described. When so adjusted, the valves are operated to establish communication with the points to be observed, and any fluctuations of pressure in pipes 5 and 6 leading to these points will be communicated in magnified amplitude to the record pens;

This magnification of the record is partly in proportion to the difference in area be tween the pressure and float chambers, and partly assisted and controlled by the siohon tubes and the valves therein, the tubes acting in the nature of manometer tubes connecting the float and pressure chambers.

Means are provided for feeding this sheet continuously and as here shown comprise a shaft 36 carrying friction rolls 37 across which the record sheet is adapted to pass. This shaft is normally driven as by a sprocket 38 by any suitable gearing from a motor or clock-works, not shown. Associated with the friction instrumentality, there is a pressure roll 39 normally held in engag lement therewith as by a spring 40.

cans are provided for effecting disengagement of the feed, and as here shown such means include a cam 41 actuatable through a handle 42 to act against the 1 sure of spring 40 to disengage the pressure roll from the feed rolls.

Associated with the device there is an alarm mechanism which may be set to sound at predetermined extremes of movement of the floats. As here shown contact terminals 43 and 44 are slidably and adjustably mounted on a plate 45 as best seen in Figs. 6 and 8. This plate is in circuit with an alarm device 46 through wiring 17, battery 48 and wiring 49 connected with the drums 25 and 26. \Vhen counterweights 29, which are of metal, contact with either of the terminals 43 or 44, a circuit is closed through the wires 23 or 24, as the case may be, and the alarm is sounded.

Means are also provided for setting up on the record-sheet lines of maximum eiiiciency within which fires, burners, drafts or the like with which the device is associated, should be maintained. To this end, there is provided a transversely arranged pen support 50: upon which there is mounted age clip pens 51. These, as best seen in l igs. 12 to 15, comprise a pen portion 52 and a clip portion 53 adapted to be mounted on the rod 50.

In using the device in connection with a furnace or boiler for instance, pipe 5 will be connected with the furnace draft while pipe 6 will be in communication with the stack draft. The pressure and float chambers will contain liquid which has been introduced as previously described and this will be sub jected to variation in the pressure in either the furnace or stack as communicated to these chambers through pipes 5 and 6. The speed with which the pressure in these pipes may act upon the float chambers is regulable through valves 19 and 20'. The position on the record chart around which the pens, carried by pen holders 30 and 31, may operate, is regulable by the amount of liquid introduced into the chambers, and this effected by a flexible tube 17, through which the liquid is introduced through the cook 18. It is desirable, when the normal conditions accompanying maximum efficiency are attained, that the two pens occupy a position on the chart, one pen on each side of the center line of the chart, and equidistant therefrom. The location of the pen is controllable by'the amount of liquid introduced in the float chamber through valve 18 and the siphon tubes. The location of the pen having been established or regulated, the gauge clips 51 are set to establish the range between which the-respective pens may move -desirable conditlon is recorded when the pens pass from between the parallel lines scored by the auge pens. The location of the clips 51 w1l1 vary, this variation being dependent on quality of fuel to be used at di erent plants, or other local working conditions. he pens-on holders 30 and 31 will score record lines between these limits, it

maximum efliciency is bein maintained. Any departure from the standard condition will be made visible as shown in the record in Fig. 1 by the left hand pen.

From the foregoing, it will be apparent that the (present invention provides means for recor ing variations in pressure, magnifying these variations, regulating their effect upon the recording instrumentalities, establishing a permanent boundary between which the record should be kept for highest efliciency, andv associating an alarm with these devices. It will be seen that it is capable of a large variety of uses, and while it has been shown in the embodiment herein described, it will be understood that many changes in the construction and arrangement and variations to permit its application in other cbnnections are permissible and within the spirit and scope of the invention as set forth in the claims.-

What I claim is 4 1. A device for recording variations of pressure, comprising a pressure-chamber; means for connecting it to a source of pressure medium; a float-chamber; a float associated therewith; a siphon connecting the float-chamber and pressure-chamber; an oscillating member disposed in operative relation to the float-chamber; an instrumentality' connecting the oscillating member and the float; and a recording in'strumentality associated with said oscillating member.

2. A device for recording variations of pressure, comprising a pressure-chamber; means for connecting it to a source of pressure medium; a second pressure-chamber; means for connecting it to another source of I .pressure medium; a float-chamber and float associated with each pressure-chamber; a

siphon in'strumentality connecting each float-chamber with its respective pressurerelation to the float-chamber; an instrumentallty connecting the oscillatin member and the float; and a 'recordin mstrumentality associated with said osci latingr'nemher; and means for feedin a record sheet into operative relation to t e recording instrumentality;

4. A recording device comprising a closed pressure chamber;-means for connecting the pressure chamber to a source of pressure; a float chamber containing a float disposed upon a flotation medium housed within the float chamber; a siphon connecting the float chamber-and pressure chamber and through which changes of pressure in the ressure chamber are communicated to t e float chamber; means for regulating the degree to which pressure changes in the pressure chamber will be communicated to the float chamber; an oscillating member disposed in proximity to the float chamber; a connecting lnstrumentalitybetween said float and oscillating member; a recording device actuated by said oscillatlng member; an alarm circuit associated with the oscillating member; and means, controlled by the float, for opening and closing said alarm circuit.

5. A recording device comprising a closed pressure chamber; means for connecting the pressure chamber to a source of pressure; a float chamber containing a float disposed upon a flotation medium housed within the float chamber; a siphon connecting the float chamber and pressure chamber and through which changes of pressure in the pressure chamber are communicated to the float chamber; means for regulating the degree to which pressure changes in the pressure chamber will be communicated to the float chamber; an oscillating member disposed in proximity to the float chamber; a connecting instrume'ntality between said float and oscillating member; a recording device actuated by said oscillating member; an alarm circuit.

associated with the oscillating member; and means, controlled by the float, for opening and closing said alarm circuit; said means comprising a counterweight disposed upon oscillating member and adapted to contactwith a terminal of the alarm circuit.

6. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pressure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containthe instrumentality connecting the float and ing a flotation medium and float associated with each pressure chamber; a siphon instrumentahty connectlng each float chamber w1th-1ts respectlve pressure chamber; an

oscillating member disposed" in relation to each float chamber; an instrumentality con-. necting each oscillating member and its respectlve float; a recording instrumentality operable by each oscillating member; and means for feding a record sheet into operative relation to the recording instrumentality.

7. A device for recording variations of pressure. comprising a pressure chamber; means for'connecting it to a source of pressure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containing a flotation medium and float associated with each pressure chamber;a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each oscillating member and its respective float; a recording instrumentality operable by each oscillating member; and means for feeding a record sheet into operative relation to the recording instrumentality; said recording instrumentality being arranged to place a record of variations of pressure from one source upon the record sheet in proximity to a like record from the other source of pressure.

8. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pressure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containing a flotation medium and float associated with each pressure chamber; a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each" oscillating member and its respective float; a recording instrumentality operable by each oscillating member; and means for feeding a record sheet into operative relation to the recording instrumentality said recording instrumentality being arranged to place a record of variations of pressure from one source upon the record sheet in proximity to a like record from the other source of pressure; and said record sheet carrying medial designations with which variations are comparable.

9. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pres sure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containing a flotation medium and float associated with each pressure chamber; a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each oscillating member and its respective float; a recording instrumentality operable by each oscillating member; means for feeding a record sheet into operative relation to the recording instrumentality; an alarm circuit associated with each oscillating member; and means, operable by each oscillating member, for opening and closing said alarm circuit.

10. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pres sure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containing a flotation medium and float associated with each pressure chamber; a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each oscillating member and its respective float; a recording instrumentality operable by each oscillating member; means for feeding a record sheet into operative relation to the recording instrumentality; and means disposed in operative relation to the record sheet for imposing thereon designations of normal working conditions, with which said pressure-variation-records are comparable.

11. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pressure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containin a flotation medium and float associated witfi each pressure chamber; a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each oscillating member and its respective float; a recording instrumentality operable by each oscillating member; means for feeding a record sheet into operative relation to the recording instrumentality; means disposed in operative relation to the record sheet for imposing thereon designations of normal working conditions, with which said pressure-variation-records are comparable; and means for adjusting the positionof said means.

12. A device for recording variations of pressure, comprising a pressure chamber; means for connecting it to a source of pressure medium; a second pressure chamber; means for connecting it to another source of pressure medium; a float chamber containing a flotation medium and float associated with each pressure chamber; a siphon instrumentality connecting each float chamber with its respective pressure chamber; an oscillating member disposed in relation to each float chamber; an instrumentality connecting each oscillating member and its respective float; a recording instrumentality operable by each oscillating member; means for feeding a record sheet into operative relation to the recording instrumentality; and a valve disposed in the means connecting each pressure chamber with its respective source of pressure.

' 5 '13. A recording instrumentality comprising a base, separate draft chambers and float chambers mounted on said base, siphon members connecting said draft and float chambers, means for "arying the pressure in said draft chambers, valves associated with said siphon members for regulating the velocity of the action of the pressure in the pressure chambers upon said float chambers, a float disposed Within each float chamber,

a drum rotatably mounted in proximity to each float chamber, a member passing around saiddrum and connected at one-end toa float, a counterweight on the other end of each member, recording mechanism .car-

ried and actuatable by said drum, and means for feeding a record sheet into association with said recording instrumentality.

141-. A recording instrumentality comprising a base, separate draft chambers and float chambers mounted on said base, siphon members connecting said draft and float chambers,

means for var ing the pressure in said draft chambers, va ves disposed in said siphon members for regulating the velocity of the 0 action of the pressure in the pressure chambers upon said float chambers, a float disposed within each float chamber, a drum rotatably mounted in proximity to each 'float chamber, a member passing aroundrsaid' drum and connected at one end to a float, a counterweight on the other end of each member, recording mechanism carried and actuatable by said drum, means for feeding a record sheet into association with said rec- 40 ording instrumentalit said means comprisi ing a platen over w ich the record sheet travels, a feed roll, means-for driving the feed roll, anda prewure roll associated with the feed roll and between which rolls the record sheet is adapted to pass. 15. A recording instrumentality comprising a base, separate draft chambers and float chambers mounted on said base, si hon mem -bers connecting said draft and oat chambers, means for varying the pressure in said draft chambers, valves disposed in said sifphon membersfor regulating the velocity 0 the action of the pressure in the pressure chambers upon said float chambers, a float disposed-within each float chamber, a drum rotatably mounted, in proximity to each --float chamber, a member passing around said drum and connected at one end to a float, a counterweight on the other end of each member, recording mechanism carried and actuatable by said drum, means for feeding a record sheet into association with said recording instrumentality, said means comprising a platen over wh1ch the record sheet travels, a feed roll, means for driving 66 the feed roll, a pressure roll associated with the feed roll and between vwhich rolls the record sheet is adapted to pass, and means for disengaging the pressure and feed rolls.

16. A recording instrumentality compris- 70 ing a base, separate draft chambers and float chambers mounted on said base, si hon members connecting said draft and oat chambers, means for varying the pressurein said draft chambers, valves disposed in said siphon members for regulating the velocity of the action of the pressure in the ressure chambers upon said float chambers, a oat disposed within each float chamber, a drum rotatably mounted in proximity to each float chamber,- a member passing around said drum and connected at one end to a float, a counterweight on the other end of each member, recording mechanism carried" and aotuatable by said drum, means for feeding a record sheet into amociation with said recording instlrumentality, said means comprising a platen" over which the record sheet travels, a feed roll, means for driving the feed roll, a pressure roll associated with the feed roll and between which rolls the record sheet is adapted to pass, means for disengaging the pressure and feed rolls, said means comprising a spring member upon which said resure roll is mounted and normally hol 'ng the pressure roll in engagement with the feed roll, and a cam mechanism for forci the ressure roll out of engagement with t e fee roll.

In testimony whereof I affix my signature in presence of two witnesses. V

IRVIN F. HEPLER.

Witnesses:

W LIJAM A. MILLER, 'MARoARnrA. PIPER. 

